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发明名称
SECRET CONVERSATION DEVICE
摘要
申请公布号
JPS6422131(A)
申请公布日期
1989.01.25
申请号
JP19870178367
申请日期
1987.07.17
申请人
NEC CORP
发明人
KOMATSU MASATOSHI
分类号
H04K1/04
主分类号
H04K1/04
代理机构
代理人
主权项
地址
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